DSE Spark cluster configuration

Important DSE, Cassandra, and Spark configuration files.

Pig use case - change data capture

Create following tables in MySQL and populate with data.

Cassandra General Questions

1. What do you mean by "seed" exactly?
   A IP Address of a node in the cluster, configured into a node just before introducing it to the cluster
   

Cassandra Keys Primary, Partition, and Cluster IN(), and Range Queries

This post explains the new CQL3 terminology and model changes since the legacy thrift architecture. Examples/exercises given here assume your queries are not using ALLOW FILTERING for the fastest queries. ALLOW FILTERING, however, is used also when developing the highest performing systems for carefully selected and bench marked usage patterns.

Summary of Hadoop concepts

Basics of Hadoop

• Apache Hadoop is a software framework.
• Hadoop is based on the concept of divide and conquer.
• It uses distributed processing for computation and storage.

HOW TO ADD new / redundant private interconnect to a Oracle RAC Cluster

Starting 11gR2, Oracle supports up to 4 redundant interconnects that will be automatically managed by the cluster for fail-over and load balancing.

Cookbook: Installing DataStax Enterprise using APT repositories

JAVA installation

sudo apt-get install python-software-properties
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer